Elevator car operating device



(No Model.) 2 Sheets-Sheet 1.

' W. PORTER.

ELEVATOR GAB. OPERATING DEVICE.

No. 402277. Patented Apr. 30, 1889.

(No Model 2 Sheets-Sheet 2.

G. W. PORTER. ELEVATOR OAR OPERATING DEVICE.

N0.I4o2,277,.' Patented Apr. .30,- 1889.

' $1Wxwhwa 45AM (9 is 04m UNITED STATES PATENT OFFICE;

GEORGE IV. PORTER, OF ALLEGHENY, PENNSYLVANIA.

ELEVAT OR-CAR-OPERATING DEVICE,

SPECIFICATION forming part of Letters Patent No. 402,277, dated April 30, 1889.

Application filed January 3, 1888.

1'0 all whom it may concern:

Be it known that I, GEORGE W. PORTER, a

citizen of the United States, residing at Althis specification.

In the accompanying drawings, Figure 1 is a side elevation of my improved device for operating elevators constructed in accordance with my invention. Fig. 2 is a rear elevation of the same. Fig. 3 is a front elevation of that portion of the device projecting into the elevator-car, showing the movement of the operating-lever. Fig. 4 is an enlarged side elevation of the frame attached to the car, which supports the hand-lever shaft and the several parts connected therewith for operatin g the vertical shaft, together with the shield for removing the braces from the said vertical shaft. Fig. 5 is an end elevation of the same. Fig. 6 is a sectional plan view taken on the line at m. Fig. 7 is an enlarged side elevation of the device used for operating the valves governing the motive power. Fig. 8 shows one of the pins secured at the top and bottom of the elevator-shaft, which acts as an automatic stop for the car when the same reaches its highest or lowest point.

To put my invention into practice, 1 provide a shaft, a, having a key-seat, b, extending the entire length of the same, and secure this shaft a vertically, in a proper position, in the shaft of an elevator by attaching the top and base of the same in suitably-constructed bearings c, and at regular intervals along the shaft properly-constructed braces d, capable of being moved vertically to allow certain other portions of the device to pass that point without interference. At the base of this vertical shaft a is secured a small bevel gearwheel, 6, which meshes with another, f, attached to a horizontal shaft, g, mounted in proper bearings, 71, having a segment of a gearwheel, 1', attached to the opposite end, which Serial No. 259,685. (No model.)

operates a vertical rack, is, connected to the valve governing the motive power used for operating the elevator-car on. Securely attached to the elevator-car m is a frame, a, having two bearings, 0, formed on the rear side of the same. These bearings 0 are provided with suitable caps, 19, which afford a means for attaching the frame a to the shaft a and allow the same to move vertically. Loosely attached to the shaft a by means of a spline operating in the key-seatb of the shaft a is a small beveled pinion, g, which meshes with another, r, mounted on a shaft, 8, attached to the front side of the frame at. Attached to the end of this shafts, projecting into the elevator-car m, is a hand-lever, t, which, if moved in either direction, will revolve the shaft a by means of the bevel-gearing. q r. A short lever, to, attached to the horizontal shaft 8 between the gear-wheel r and the frame n, serves to revolve the vertical shaft a when the car on has reached the highest or lowest point in the elevator-shaft by the said leveru meeting an obstruction properly placed at given points in the elevator-shaft. Surrounding this frame on two sides is a shield,'w, which, when brought against the above-described braces d from either direction,'will move the same to one side.

In operatingthis device, if the lever 15 is moved a short distance upward the shaft a is revolved, which operation revolves the gearwheels 6 f and shaft 9, which opens the valve Z for the upward movement of the car m. If

along its entire length a key-seat, b, and the A same properly secured in a vertical position in an elevator-shaft, the gear-Wheel q, operating along the shaft a by means of a spline, 2, and mounted in a frame, a, attached to the side of the elevatoi car m, and the beveled the said braces (Z maybe temporarily removed from the vertical shaft, substantially as set forth.

In testimony that I claim the foregoing I I 5 hereunto afiix my signature this 3d day of November, A. D. 1887.

GEORGE \V. PORTER.

In breseuce of C. C. LEE, II. II. PEARSON.

[in s] 

